OFI1200A28

AC/DC Enclosed Power Supply (PSU), ITE & Industrial, 1 Outputs, 1.204 kW, 28 V, 43 A

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Manufacturer: COSEL
Product type: AC / DC Enclosed Power Supplies
SVHC: Lead (04-Feb-2026)
Product Range: OFI1200A Series
No. of Outputs: 1Outputs
Output Power Max: 1.204kW
Current, Output 4: -
Input Voltage VAC: 85V AC to 305V AC
Power Supply Output Type: Fixed
Output Current - Output 1: 43A
Output Current - Output 2: -
Output Current - Output 3: -
Output Voltage - Output 1: 28V
Output Voltage - Output 2: -
Output Voltage - Output 3: -
Output Voltage - Output 4: -
Power Supply Applications: ITE & Industrial

Delivery and price
Units per pack	1
Price	979.62 €
Current stock	10+
Lead time	30 days

Datasheet

POWERBOX Industrial Line OFI1200A Series 1200W Single Output AC/DC Baseplate Power Supply 

OFI1200A – a powerful a powerful baseplate cooling power supply for demanding applications. The design of transfer heat to the baseplate makes it suitable for none ventilated applications as in sealed enclosures. A product that is suitable for wide application areas in industrial and others. Ruggedized construction makes it ideal for harsh environmental applications. 

## **Features** 

Conductive cooling Output active ORing (optional only 28Vdc & 48Vdc) Paralleling & Redundancy operation Voltage & Current, wide range adjustable (see manual) Active current share Vibration/shock according MIL-STD-810H Power Good Remote sense Remote On/Off OCP, OVP, OTP, SCP 

## **Input** 

**==> picture [204 x 174] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||
|---|---|---|
|Input voltage range|85-305VAC|
|Nominal input voltage|100-277VAC|
|Input voltage DC|No|
|Input frequency|47-63Hz|
|Protection class|I (with ground)|
|Power factor|0.98/0.95 (110VAC/230VAC)|
|Inrush current|40A typ.|
|Input current|12V: 10.9A/ 5.1A|
|@110/230VAC|28V & 48V: 12.5A/ 5.8A|
|Hold up time|20ms (230VAC, Full load)|
|Input fuse|Yes|
|Turn on time|600ms typ.|(Remote on 100ms)|
|@-40°C deg.|[1)]|
|Leakage current|<1.5mA at 277VAC/60Hz|

**----- End of picture text -----**<br>


## **Output** 

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**----- Start of picture text -----**<br>
||||
|---|---|---|
|Output volt./Cur./Power See table|
|Output peak power|N/A|
|Minimum load|0A|
|Line regulation|0.5% mV max|
|Load regulation|0.5% mV max. 10-90% load change|
|Temp. coefficient|± 0.02%/°C|
|Ripple & noise (20MHz BW) 1%, :1,5% for 12Vdc. (2% below 0°C)|
|Output voltage adj.|Potentiometer & ext. voltage.|[2)]|
|Paralleling|Yes, up to 9 units|

**----- End of picture text -----**<br>


## **Environmental** 

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**----- Start of picture text -----**<br>
||||||
|---|---|---|---|---|
|Operating temperature|–|40°C to +95°C|
|Baseplate assembly|
|Derating|See manual|
|Operating humidity|20-95%RH (Non condensing)|
|Altitude operation|max. 5000m|
|Storage temperature|–|40°C to +85°C|
|Storage humidity|20-95%RH (Non condensing)|
|Vibration|MIL-STD-810H, Cat. 4 Fig. 514.8C-3|
|Shock|MIL-STD-810H,|
|Procedure 1, 20G 11ms, Ground material|
|Mechanical|
|Size WxHxD|With cover option: 142x40x260mm|
|Without cover: 142x39x260mm|
|IP class|IPX0|
|Weight|1.2kg (1.4kg with cover)|
|Connectors|Input: Phoenix MKDS 5/ 3-9,5 (1714984)|
|Output: Studs/M6 Screw|
|Signals: Molex 818311041|
|Connector placement|Input and Output on each side|
|General|
|MTBF Telcordia|>1,990,000h @ 25°C, full load|
|Life time expectations|See manual|
|Model|Output  Output|Output|Efficiency|
|Number|Voltage  Current|Voltage adj.|[2)]|110VAC/230VAC|
|OFI1200A12  12VDC|~0-84A|~0-14.4VDC|84% / 86.5%|
|OFI1200A28  28VDC|~0-43A|~0-33.6VDC|88% / 90.5%|
|OFI1200A48  48VDC|~0-25A|~0-57.6VDC|89% / 92%|

**----- End of picture text -----**<br>


**Note** 

1. For startup below -20 **°** C see manual. 

2. Wide output adj. see manual. Full adj. range only when use external voltage VTRM. On board potentiometer adj. range 35% to 120% of nominal o/p voltage. For option -O: o/p adj. range 5V to 120% of nominal voltage, if need below <5VDC contact Powerbox. 

3. See manual 

www.prbx.com 

2022.07.14 Specifications are subject to change without notice. 

POWERBOX Industrial Line OFI1200A Series 1200W Single Output AC/DC Baseplate Power Supply 

## **Protection Circuit and Others** 

|Over current protection|Yes, works over 105% of rating auto recovery|
|---|---|
|Type of current limit|Hiccup3)|
|Constant current mode|Yes (when current level adjusted otherwise|
||hiccup)|
|Over voltage protection|Yes|
|Over temp. protection|Yes|
|Remote sensing|Yes|
|Remote ON/OFF|Yes|
|Output LED|Yes, green(operate only at nominal o/p voltage)|
|Active ORing|Only for 28V & 48V version (optional)|



|**Control and Communication**|**Control and Communication**|
|---|---|
|Power Good|Yes, Normal operation: Low|
|VTRM, ITRM|Yes|
|**Isolation**||
|Input -Output, RC|3000VAC|
|Input-FG|2000VAC|
|Output-FG|500VAC|
|Output - RC, PG|100VAC|
|**Safety Standards**||
|UL certificate|UL62368-1 3rded. 2019|
||CSA 22.2 No. 62368-1:19 3rded.|
|CB certificate|IEC 62368-1:2018|
|evaluated to|EN62368-1:2020+A11:2020|
||BS EN62368-1:2020+A11:2020|
|Certification mark|CE, UKCA, cURus|
|RoHS|Yes, Directive 2011/65/EU (2015/863)|
|**EMC**||
|Harmonic attenuator|EN61000-3-2 class A, (C >50% load)|
|Flicker|EN61000-3-3|
|Conducted noise|EN55032 class B with/without cover|
|Radiated noise|EN55032 class A with/without cover|
|EMS immunity|Compliance to|
||EN61000-4-2, 3, 4, 5, 6, 8, 11|



## **Part numbers and options** 

|OFI1200A|XX|-|YY|
|---|---|---|---|
||O/p Voltage||Option|
||12: 12VDC||N: Cover|
||28: 28VDC||O: Oring (only for 28 & 48)|
||48: 48VDC|||



www.prbx.com 

2022.07.14 Specifications are subject to change without notice. 

POWERBOX Industrial Line OFI1200A Series 1200W Single Output AC/DC Baseplate Power Supply 

## **Block diagram** 

## **Mechanical dimensions** 

www.prbx.com 

2022.07.14 Specifications are subject to change without notice.

Updated at June 4, 2026

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